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HSChapter 90
U.S. imports of non-medical apparatus using alpha, beta, gamma or other ionizing radiation (HS 902229) totaled $21.1M in April 2026, traded with 13 countries.
Importers of Non-Medical Apparatus Using Alpha, Beta, Gamma or Other Ionizing Radiation paid $209K in duties in April 2026 — an effective duty rate of 11% on $1.9M in dutiable value, based on actual customs collections rather than the published tariff schedule. Non-Medical Apparatus Using Alpha, Beta, Gamma or Other Ionizing Radiation imports of $21.1M in April 2026 ran 11% above the year-to-date monthly average of $19.0M.
Last updated: April 2026 dataIonizing-radiation apparatus used outside clinical settings — most notably smoke detectors (classified under 9022294000) and a broad residual category of other non-medical radiation apparatus (9022298000) — falls here. Mexico and China are the leading US import sources for this heading, with Norway, Italy, and Germany also represented. Smoke detectors using americium-241 (an alpha emitter) are the highest-volume commodity in this heading by unit count, while the residual line covers industrial gauges, level sensors, and similar instruments.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Ionization-type smoke detectors use a small quantity of a radioactive isotope (typically americium-241) to ionize air in a detection chamber — making them apparatus based on the use of alpha radiation. This places them squarely within heading 9022 rather than among general electrical safety apparatus. The HTS specifically provides for them at the 10-digit level under 9022294000, distinguishing them from photoelectric smoke detectors classified elsewhere.
Apparatus in the residual line 9022298000 that incorporates sealed radioactive sources — such as industrial level gauges or density meters — may require an NRC or Agreement State license for the radioactive material itself, separate from any CBP entry requirements. Importers should determine whether the specific article contains licensed radioactive material and obtain the necessary authorizations before shipment arrives.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 9022294000 | APPTS, ALPHA,BETA,ETC RADIATION FOR SMOKE DETECTOR | $19.4M | 10.00% | $19K |
| 9022298000 | APPTS, ALPHA,BETA,ETC RADIATION FOR OTH USE, NESOI | $1.7M | 11.35% | $190K |
APPTS, ALPHA,BETA,ETC RADIATION FOR SMOKE DETECTOR
APPTS, ALPHA,BETA,ETC RADIATION FOR OTH USE, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9022298000 | APPTS, ALPHA,BETA,ETC RADIATION FOR OTH USE, NESOI | $4.8M |
| 9022294000 | APPTS, ALPHA,BETA,ETC RADIATION FOR SMOKE DETECTOR | $77K |
APPTS, ALPHA,BETA,ETC RADIATION FOR OTH USE, NESOI
3.4K no
APPTS, ALPHA,BETA,ETC RADIATION FOR SMOKE DETECTOR
7.1K no
INSTR & APPL F MEDICAL SURGICAL DENTAL VET, NESOI
HS 901890
MED NEEDLES. NESOI, CATHERERS ETC AND PARTS ETC
HS 901839
ARTIFICIAL JOINTS & PARTS & ACCESSORIES THEROF,NES
HS 902139
ELECTRO-DIAGNOSTIC APPARATUS NESOI, AND PARTS ETC.
HS 901819
OZONE,OXYGEN,ETC THERAPY, RESPIRATION APPARATUS,PT
HS 901920
MEAS CHECKNG INSTRUMENT & MACH, NOT OPTICAL, NESOI
HS 903180
| Port | Imports | Exports | Balance |
|---|---|---|---|
| YSLETA, TX | $19.4M | $22K | -$19.4M |
| DETROIT, MI | $3K | $1.6M | +$1.6M |
| CHICAGO, IL | $4K | $889K | +$886K |